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package icexam.util;

import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.Hashtable;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 *
 * @author Ethan
 */
public class CardIDChecker {
    public static void main(String[] args){
        try {
            System.out.println(IDCardValidate("420006198208155118"));
        } catch (ParseException ex) {
            Logger.getLogger(CardIDChecker.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
    public static String IDCardValidate(String IDStr) throws ParseException {
        String errorInfo = "";// 记录错误信息
        String[] ValCodeArr = { "1", "0", "x", "9", "8", "7", "6", "5", "4",
                "3", "2" };
        String[] Wi = { "7", "9", "10", "5", "8", "4", "2", "1", "6", "3", "7",
                "9", "10", "5", "8", "4", "2" };
        String Ai = "";
        // ================ 号码的长度 15位或18位 ================
        if (IDStr.length() != 15 && IDStr.length() != 18) {
            errorInfo = "身份证号码长度应该为15位或18位。";
            return errorInfo;
        }
        // =======================(end)========================

        // ================ 数字 除最后以为都为数字 ================
        if (IDStr.length() == 18) {
            Ai = IDStr.substring(0, 17);
        } else if (IDStr.length() == 15) {
            Ai = IDStr.substring(0, 6) + "19" + IDStr.substring(6, 15);
        }
        if (isNumeric(Ai) == false) {
            errorInfo = "身份证15位号码都应为数字 ; 18位号码除最后一位外，都应为数字。";
            return errorInfo;
        }
        // =======================(end)========================

        // ================ 出生年月是否有效 ================
        String strYear = Ai.substring(6, 10);// 年份
        String strMonth = Ai.substring(10, 12);// 月份
        String strDay = Ai.substring(12, 14);// 月份
        if (isDate(strYear + "-" + strMonth + "-" + strDay) == false) {
            errorInfo = "身份证生日无效。";
            return errorInfo;
        }
        GregorianCalendar gc = new GregorianCalendar();
        SimpleDateFormat s = new SimpleDateFormat("yyyy-MM-dd");
        if ((gc.get(Calendar.YEAR) - Integer.parseInt(strYear)) > 150
                || (gc.getTime().getTime() - s.parse(
                        strYear + "-" + strMonth + "-" + strDay).getTime()) < 0) {
            errorInfo = "身份证生日不在有效范围。";
            return errorInfo;
        }
        if (Integer.parseInt(strMonth) > 12 || Integer.parseInt(strMonth) == 0) {
            errorInfo = "身份证月份无效";
            return errorInfo;
        }
        if (Integer.parseInt(strDay) > 31 || Integer.parseInt(strDay) == 0) {
            errorInfo = "身份证日期无效";
            return errorInfo;
        }
        // =====================(end)=====================

        // ================ 地区码时候有效 ================
        Hashtable h = GetAreaCode();
        if (h.get(Ai.substring(0, 2)) == null) {
            errorInfo = "身份证地区编码错误。";
            return errorInfo;
        }
        // ==============================================

        // ================ 判断最后一位的值 ================
        int TotalmulAiWi = 0;
        for (int i = 0; i < 17; i++) {
            TotalmulAiWi = TotalmulAiWi
                    + Integer.parseInt(String.valueOf(Ai.charAt(i)))
                    * Integer.parseInt(Wi[i]);
        }
        int modValue = TotalmulAiWi % 11;
        String strVerifyCode = ValCodeArr[modValue];
        Ai = Ai + strVerifyCode;

        if (IDStr.length() == 18) {
            if (Ai.equals(IDStr) == false) {
                errorInfo = "身份证无效，不是合法的身份证号码";
                return errorInfo;
            }
        } else {
            return "";
        }
        // =====================(end)=====================
        return "";
    }
    private static Hashtable GetAreaCode() {
        Hashtable hashtable = new Hashtable();
        hashtable.put("11", "北京");
        hashtable.put("12", "天津");
        hashtable.put("13", "河北");
        hashtable.put("14", "山西");
        hashtable.put("15", "内蒙古");
        hashtable.put("21", "辽宁");
        hashtable.put("22", "吉林");
        hashtable.put("23", "黑龙江");
        hashtable.put("31", "上海");
        hashtable.put("32", "江苏");
        hashtable.put("33", "浙江");
        hashtable.put("34", "安徽");
        hashtable.put("35", "福建");
        hashtable.put("36", "江西");
        hashtable.put("37", "山东");
        hashtable.put("41", "河南");
        hashtable.put("42", "湖北");
        hashtable.put("43", "湖南");
        hashtable.put("44", "广东");
        hashtable.put("45", "广西");
        hashtable.put("46", "海南");
        hashtable.put("50", "重庆");
        hashtable.put("51", "四川");
        hashtable.put("52", "贵州");
        hashtable.put("53", "云南");
        hashtable.put("54", "西藏");
        hashtable.put("61", "陕西");
        hashtable.put("62", "甘肃");
        hashtable.put("63", "青海");
        hashtable.put("64", "宁夏");
        hashtable.put("65", "新疆");
        hashtable.put("71", "台湾");
        hashtable.put("81", "香港");
        hashtable.put("82", "澳门");
        hashtable.put("91", "国外");
        return hashtable;
    }
    static void getInfof(String s) {
        String M = new String(s);
        int y = Integer.parseInt(M.substring(6, 8));
        int m = Integer.parseInt(M.substring(8, 10));
        int d = Integer.parseInt(M.substring(10, 12));
        if (m < 1 || m > 12 || d < 1 || d > 31 || ((m == 4 || m == 6 || m == 9 || m == 11) && d > 30)
                || (m == 2 && (((y + 1900) % 4 > 0 && d > 28) || d > 29))) {
            System.out.println("該居民身份證出生年月日错误!");
        } else {
            System.out.println("该居民出生地：" + M.substring(0, 6));
            System.out.println("该居民出生时间为：" + y + "年" + m + "月" + d + "日");
        }
        int sex = Integer.parseInt(M.substring(14, 15));
        if (sex % 2 == 0) {
            System.out.println("该居民为：女性");
        } else {
            System.out.println("该居民为：男性");
        }
    }

    static void getInfoe(String s) {
        String M = new String(s);
        int y = Integer.parseInt(M.substring(6, 10));
        int m = Integer.parseInt(M.substring(10, 12));
        int d = Integer.parseInt(M.substring(12, 14));
        int[] xx = {2, 4, 8, 5, 10, 9, 7, 3, 6, 1, 2, 4, 8, 5, 10, 9, 7};
        char[] yy = {'1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'};
        int mm = 0;
        int[] gg = new int[18];
        if (y < 1900 || m < 1 || m > 12 || d < 1 || d > 31 || ((m == 4 || m == 6 || m == 9 || m == 11) && d > 30)
                || (m == 2 && ((y % 4 > 0 && d > 28) || d > 29))) {
            System.out.println("該居民身份證出生年月日錯誤!");
        } else {
            System.out.println("该居民出生地：" + M.substring(0, 6));
            System.out.println("该居民出生时间为：" + y + "年" + m + "月" + d + "日");
        }
        int sex = Integer.parseInt(M.substring(16, 17));
        if (sex % 2 == 0) {
            System.out.println("该居民为：女性");
        } else {
            System.out.println("该居民为：男性");
        }
        for (int i = 1; i < 18; i++) {
            int j = 17 - i;
            gg[i - 1] = Integer.parseInt(M.substring(j, j + 1));
        }
        for (int i = 0; i < 17; i++) {
            mm += xx[i] * gg[i];
        }
        mm = mm % 11;
        char c = M.charAt(17);
        if (c == yy[mm]) {
            System.out.println("该居民身份证是真的");
        } else {
            System.out.println("该居民身份证是假的(校验码有误)");
        }
    }

    static void Convert(String s) throws IOException {
        StringBuffer sad = new StringBuffer(s);
        sad.insert(6, "19");
        int[] xx = {2, 4, 8, 5, 10, 9, 7, 3, 6, 1, 2, 4, 8, 5, 10, 9, 7};
        char[] yy = {'1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'};
        int mm = 0;
        int[] gg = new int[18];
        for (int i = 1; i < 18; i++) {
            int j = 17 - i;
            gg[i - 1] = Integer.parseInt(sad.substring(j, j + 1));
        }
        for (int i = 0; i < 17; i++) {
            mm += xx[i] * gg[i];
        }
        mm = mm % 11;
        System.out.println("该居民身份证是新的身份证" + sad + yy[mm]);
    }

    private static boolean isNumeric(String str) {
        Pattern pattern = Pattern.compile("[0-9]*");
        Matcher isNum = pattern.matcher(str);
        if (isNum.matches()) {
            return true;
        } else {
            return false;
        }
    }

    public static boolean isDate(String strDate) {
        Pattern pattern = Pattern
                .compile("^((\\d{2}(([02468][048])|([13579][26]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])))))|(\\d{2}(([02468][1235679])|([13579][01345789]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\\s(((0?[0-9])|([1-2][0-3]))\\:([0-5]?[0-9])((\\s)|(\\:([0-5]?[0-9])))))?$");
        Matcher m = pattern.matcher(strDate);
        if (m.matches()) {
            return true;
        } else {
            return false;
        }
    }
}
